The good doctor is absolutely correct.

You might also want to go to: drugs.com

If you register, which is free, you can enter all the medications you take and the site will cross reference them and give information on any interactions.

For example: Anti-diarrhea medications that contain Bismuth compounds do interact with anti-coagulants, but the interaction is moderate.

In addition, if you decide to add foods that would lower your INR, you could discuss this with whoever monitors your INR and adjusts your medication. I've been told that with frequent monitoring and very gradual changes in diet, your medication can be adjusted to account for dietary changes, like eating a healthier diet which would include dark green leafy vegetables, my understanding is that the darker the green, the more vitamin K, so iceberg lettuce would not be a big problem. But there are many other foods, unless they were in your diet when you started the anti-coagulant, that should not be added without consulting with your physician; juices like cranberry and pomegranate, for example. But all of this stuff is on drugs.com.

Also, on Drugs.com, you can find FDA monographs on the drug you are looking at, as well as extensive information on side effects and links to other sources of information, including Pubmed and other databases. Just go to the "Professional" listings. They can be dense with medical terminology, but there are dictionaries, and Wikipedia to help you out.

Take the time, and all the time it takes to learn as much as you can about your Thrombus and it's treatment, because KNOWLEDGE IS POWER.

Hope this helps,

Ross